Abstract
We theoretically investigated the spin dynamics of a polaron under a gate voltage in aone-dimensional organic polymer chain. Spin precession is obtained when a polarontransports along the polymer chain. The spin precession has a certain periodic length,which is in inverse proportion to the strength of the spin–orbital interaction. It was foundthat spin precession takes place only on the polaron level (intralevel spin precession), whilein a rigid semiconductor spin precession takes place among all the conduction levels(interlevel spin precession). In addition, the periodic length of polaron spin precessionbecomes longer for stronger electron–lattice interaction, indicating long spin relaxation inorganic polymers.
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